A fault tolerant control system for the output stabilization of SISO plants with actuator uncertain hysteresis nonlinearities

This paper addresses the measured output zeroing problem of a SISO plant whose actuator device contains uncertain non-smooth nonlinearities and is subject to failures of unknown parameter, time and pattern. A fault tolerant control system structured as in Patton is here considered. The control law ensures the plant output zeroing even in faulty conditions. The entire control scheme is shown to provide self repairing capability, exploiting the actuators redundancy. Theoretical results have been validated by simulation.